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Process requirements for long-life bearings
Requirement for Process of Manufacturing Long Life Bearing
Introduction
The purpose of this paper is to provide an overview of the process requirements for the manufacturing of long life bearings. Bearing reliability or lifetime of bearing is defined by the time period a bearing can perform its ......
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GB 6654-1996 Size, Shape, Weight and Allowable Deviation of Steel Plates for Pressure Vessels
SYNOPSIS
This GB 6654–1996 specifies the dimensions, shapes, masses, and permissible deviations of steel plates used for pressure vessels. The plates that are covered by this document are those with a nominal thickness of 4.75 mm or more, and a nominal width of 600 mm or more. The characteristic......
ASTM A484M-1998 Dimensional tolerances for stainless and heat-resistant steel bars, billets, and forgings
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ASTM A484M-1998 Standard Specification for General Requirements for Stainless Steel and Heat-Resistant Steel Bars, Billets, and Forgings
This ASTM A484M-1998 standard covers general requirements for stainless steel and heat-resistant steel bars, billets and forgings. The requirements for materi......
JIS G4106—1979 Manganese alloy steel and manganese-chromium alloy steel manufacturing method, shape and size for mechanical structure
，JIS G4106—1979 establishes the manufacturing methods, shapes and dimensions of manganese alloy steel and manganese-chromium alloy steel for mechanical structures. Manganese alloy steel is steel alloyed with a variety of manganese and with other elements such as silicon, copper, and aluminium. Thi......
Mechanical properties and technological properties of waste heat treated steel bars (GB 13014-1991)
Mechanical and Process Performance of Quenching and Tempering Steel Reinforcing Bars (GB 13014-1991)
Introduction
Quenching and tempering is a common process applied to steel reinforcing bars (rebars). This process is used to increase the mechanical and process performance of the bars. The purpo......
Dimensions, weight and allowable deviation of cold-rolled ribbed steel bars (GB 13788-2000)
Cold Rolled Ribbon Ribbed Steel Bars Dimensions, Weight and Tolerances (GB 13788-2000)
Cold rolled ribbon ribbed steel bars, commonly referred to as ‘ribbed steel bars’ in technical specifications, are bars produced by cold rolling open round billets manufactured in steel mills. Ribbed steel ba......
Mechanical properties, process properties and surface quality of cold-rolled ribbed steel bars (GB 13788-2000)
Abstract
This paper evaluates the cold-rolled ribbed steel bar mechanical performance, process performance and surface quality by comparing with GB13788-2000 and other standards. Cold-rolled ribbed steel bar is widely used in reinforced concrete and other building structures. In this paper, a ser......
straightness
straightness is a measure of how straight an object is, usually compared to a theoretical straight line. In metrology, straightness is an important characteristic of linear dimension. An object’s straightness can change over time due to external factors such as temperature, humidity, and force.
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Alloy structural steel bars for steam turbine bolts (YB/T158-1999)
Turbine bolt alloy steel bar (YB/T158-1999) Introduction
Turbine bolt alloy steel bar, also known as turbine rotor head bolt steel bar, is an important material widely used in the power industry. It is mainly used as a connecting bolt in turbines, generators and other high-speed and heavy-duty ro......
General requirements for surface quality of hot-rolled steel sheets GB T14977-94
General Requirements for the Surface Quality of Hot Rolled Steel Sheets
Hot-rolled steel sheets are widely used in construction engineering and other industries due to their excellent characteristics. To ensure a good performance, it is necessary to meet the surface quality requirements. General ......
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